Sawing-machine.



l PATENTED SEPT. 24, 1 907.l

H. ANDERSON; sAwING MACHINE. APPLICATION FILED 00T. 6. 1906.

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UNITED, STATES HNRY ANDERSON), OF VEGA, WASHINGTON.-

sAwrNG-MACHINE.

-v'Specicaton of Letters Patent.y

^Patented Sept. 24, 1907.

Application i'iled October 5, 1996. .Serial Ne. 337.649.

To all whom it fmay concern:

vit is only necessary to drive the spurs 12 of the bearing Be it known that l', HENY'AN'DERSON', a citizen of arm into one sideof the same, properly adjust the l the United States, residing at Vega,l inthe county. of

Pierce and State of Washington, have invented a new and useful SawingMachine, of which the following is a specification. A'

l This invention relates more particularly to manually l operated sawing machines, and the principalobject is l to provide a light easily transported machine, vwhich can be readily lapplied either to-fstanding or prostrate timber, is easily'adjustable' to trees, logsor beams ofA different sizes, and will properly hold the saw to its Work throughout the extent'of the lcutting operation.

y tail perspectiveview of the vbearing arm. Fig. 7 is ay detail perspective view of the saw guide.

. Similarreference numerals designate corresponding parts in all the figures of the drawings. i ln the embodiment illustrated, a support is employed that is inthe form'of agui'ide bar 8, having one side provided with a longitudinal groove 9. Means are employed for'securing this `guide bar to thetir'nber to be cut. bearing arm 10 vis providedV at one end with an offset headlll, said end'andliead4 being provided with longitudinally proj elcting spurs 12. 4The other end of the head has a reduced squared stem -13'that is ari ranged to be passedvthrough any of a seriesof ears 14,; projecting from the rear side 'of the guide bar 8. A pin l5; or other suitable fastener, serves to secure the stem in the ear. i Headed bolts 16 are located in` theends of the'guide bar 8, and project lfrom the rear sides thereof. On these bolts are pivotally mounted clamping arms 17 held in place by pinsllS, or other sui-table fasteners. l Each oi the arms 17 comprisesslidably associated sections 19 and 20, the section 19 having at its inner endA an eye 2l to receive the bolt 16, the other section having its outer end bifurcated and provided Withfoffset spurs'22', the inner section 19 furthermore being provided with guide stirrups 23, in which the outer section 2O is Slidably mounted. Said outer section has on its inner lace a plurality of transverse recesses 24. The section 19 is provided between the guide stirrups 23 with a recess 25, and a holding pin 26 is arranged to engage in the recess 25 and any of the recesses 24, thus maintaining the sections against their sliding movements. The clamping arms, as clearly shown in Fig. 1, are disposed on opposite sides of the bearing arm, and

their spurs 22 are arranged in opposing relation. There.

l lengths of the. arms 17, and drive the spurs 22 into dia- `metrically opposite portions ofthe timber. This it is believed, win' be' naar by reference to Fig. 1.

Slidably mounted on the supporting guide 8 is a carrier 27 that embraces the bar 8, and has at one end an offset longitudinally disposed -bracket 28. A lever 29 l is fulcrumed between its ends on the free end of the bracket. "lhe lever 29 is adjustable on said fulcrum bolt, as willbe apparent by reference to Fig. 1. To the inner end or arm of the lever 29 is pivoted a -clip 31 is secured to the saw 32. The other arm of the lever 29 has a longitudinally disposed slot 33 in which a bolt 34 is adjustable. t This bolt 34 constitutes means for securing one end of an actuating bar 35 to the outer arm of the lever. The other end of said link has a cross handle grip 36. A brace 37 is pivoted, as shown at 38 to the inner arm of the lever directly adjacent to the saw-engaging clip 31, .while its outer portion extends across an intermediate portion of the actuating bar 35, said bar and the brace being provided with openings l 39, through any of which a holding bolt 40 is adapted to be passed. Acurved-guide 41 is secured to the inner portion of the bracket 28, directly adjacent to this offset, and the innerarm of the lever 29 operates in said guide. Rotatably mounted on the carrier 2,7 bya suitablel bolt 42 is a toothed or ratchet wheel 43, having a handle 44 projecting from one side. The wheel on its inner side has a central angular 'boss/45, and a spring 46, surrounding saidA boss, has an inner angular terminal 47"A -that engages the same. The outer'portion 48 of the spring extends to one side of the carrier, and` has an angular offset end 49 on which isl journaled a saw engaging roller 50 provided with a peripheral groove 51. Tension on the spring is maintained by a dog, which, as shown clearly in Fig. 2, comprises an arm 52 secured at one end, and as shown at 53 to the bracket 28. The arm 52 hasan offsethandle portion 54, and at its free end is bowed or looped, as illustrated at 55 to provide a. tooth which coacts with the teeth of the ratchet wheel 43, being movable topositionsl between said teeth of saidratchet Wheel. The terminal of the arm or dog slidably passes through the carrier 27, and constitutes a 'tooth 56'that is movable into and out of different openings 57 @formed in the supporting guide 8. The dog .therefore performs a double function, preventing the rotation of the ratchet wheel upon the carrierand normally holding said carrier against its reciprocatory movement on the guide 8. The roller, as illustrated in Fig. 1, bears against the rear edge of the saw, said rear edge operating in the groove 51 of the roller.

In connection with the mechanism above described, a saw guide is preferably employed that is in the form of a substantially triangular bracket 58 having a base 59 provided with a spur 60 that is adapted to be driven into the timber to be cut. The bracket 58 has convergently disposed side arms 61 terminating in an offset inwardly extending loop 62. The saw is adapted to operate between the arms 61 and loop 62.

In using the machine, they support is iirst clamped upon the timber to be cut in a position that will permit the saw to operate on the desired line of the cut. The saw guide 58 is then fastened, the desired relation of the lever 27, the actuating bar 35 and the brace 37 is secured in order that the proper power can be obtained. Thus in soit Wood, the leverage necessary to operate the saw can be made considerably less than in hard wood, in which power is required and speed must be sacrificed. The carrier 27, having been properly positioned upon the support 8, tension is applied lto the spring 48 by turning the ratchet wheel 42, after which the wheel and carrier are locked by the dog. The operator has then only to oscillate the handle grip 36, whereupon the saw will be caused to move back andiorth, and as rapidly as it cuts its way through the timber, the spring 48 will feed it into the wood. 1'

It will be evident that the structure is simple, that it may be made light enough so that it can be easily transported, and furthermore that it is adjustable to work of diierent sizes.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is:` l

1. In a sawing machine, the combination with a support ing guide bar having a guide-way in one side, of swinging clamping arms pivotally mounted on thel ends of the guide bar and on the opposite side from the guide-way, said arms having oppositely disposed spurs, a carrier slidably mounted in the guideway and being independent of the arms, a bracket secured t0 the carrier, saw actuating means movably mounted on the bracket, and means mounted on the carrier for yieldingly holding the saw to its work, said saw actuating means and yielding holding means being movable with the carrier.

2l In a sawing machine, the combination with a supporting guide, of means connected directly to the guide for mounting the same in fixed relation to the work, a carrier slidably mounted on the guide, independently of said mounting means, a bracket secured to the carrier, saw actuating means movably mounted on the bracket, and means mounted on the carrier for yieldingly holding the saw to its work, said saw actuating means and yielding holding means being movable with the carrier.

3. In a sawing machine, the combinationwith a supporting device, of a lever fulcrumed between its ends, and supportedon the device, saW engaging means connected to one arm of the lever, an actuating bar adjustably mounted at one end on the other arm of the lever, and having a handle at its free end and a brace connecting the first mentioned arm of the lever and the bar between the handle and the connection of said bar with the lever.

4. In a sawing machine, the combination with a supporting device, of a bracket mounted on the supporting device, a lever adjustably fulcrumed between its ends on the bracket, a saw engaging clip pivoted to one arm of the lever, the other arm of said lever having a longitudinal slot, an actuating bar, a bolt carried by one end of the actuating bar and engaging in the slot to hold said end at dierent positions on the lever, a cross handle grip connected to the other end of the bar, a brace pivoted to the arm of the lever that has the saw engaging clip, said brace being disposed transversely of the actuating bar and being adjustable longitudinally thereof, the actuating har being likewise adjustable longitudinally of the brace, and a bolt adjustably connecting the bar and brace for holding them in diierent relative positions.

5. In a sawing machine, the combination with a supporting guide, of a carrier slidably mounted thereon and having a bracket, a saw actuating lever' fuicrumed on the bracket, means for holding the saw to its work., said means being arranged on the carrier, and a dog mounted on the bracket and engaging the saw holding means to prevent its movement on the carrier, said dog also engaging the supporting guide to hold the carrier against movement thereon.

6. Ina sawing machine, the combination with a support, of a carrier movably mounted on the support, saw actuating mechanism, means movably mounted on the carrier for holding the saw to its work, and a common device for holding said means against movement on the carrier and for holding the carrier against movement on the support.

7. In a sawing machine, the combination with a supporting guide, of a carrier slidably mounted thereon, saw actuating means mounted on the carrier, a saw engaging roller, a spring carrying the same and having a rotatable mounting on the carrier, a ratchet wheel associated with the spring, and a dog mounted on the carrier, said dog engaging the ratchet wheel to prevent its rotation, and engaging the supporting guide to prevent the sliding movement of the carrier.

S. In a sawing machine, the combination with a supporting bar, of saw actuating means movably mounted on one side of the same, and means mounted on the other side of the bar for securing the same to it's work, said means comprising a bearing arm mounted, on an intermediate portion of the supporting bar and projecting from one side of the same, said bearing arm being adjustable longitudinally of the supporting bar and clamp arms pivoted to the supporting bar on opposite sides of the bearing arm, said clamp arms each comprising siidably associated sections, the outer sections of the arms having oppostely extending spurs, and means for normally holding' the sections against their sliding movements.

9. In a sawing machine, the combination with a supporting guide, of a bearing arm projecting from one side of the same, clamping arms pivoted to the guide on opposite sides of the bearing arm, a reciprocatory carrier siidably mounted on the guide and having an offset bracket, a lever fulcrumed on the bracket, an actuating bar pivoted to one end of the lever, saw engaging means pivoted to the other end of the lever, a brace adjustably connecting the latter end of the lever and the actuating bar, a saw engaging roller, a spring carrying the same, and having a rotatable mounting on the carrier, a ratchet wheel associated with the spring, and a dog movably mounted on the carrier, suid dog engaging the ratchet wheel to normally prevent its rotation and engaging the supporting guide to prevent the sliding movement of the carrier thereon.

In testimony, that I claim the foregoing as my own, I have hereto aiixed my signature in the presence of two Witnesses.

his HENRY ANDERSON.

mark. Witnesses:

J. M. DULEY,

F. A. LATCHAM. 

